a3047672d0
containerMap is used in CPU Manager to store all containers information in the node. containerMap provides a mapping from (pod, container) -> containerID for all containers a pod It is reusable in another component in pkg/kubelet/cm which needs to track changes of all containers in the node. Signed-off-by: Byonggon Chun <bg.chun@samsung.com>
88 lines
2.6 KiB
Go
88 lines
2.6 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package containermap
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import (
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"testing"
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)
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func TestContainerMap(t *testing.T) {
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testCases := []struct {
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podUID string
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containerNames []string
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containerIDs []string
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}{
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{
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"fakePodUID",
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[]string{"fakeContainerName-1", "fakeContainerName-2"},
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[]string{"fakeContainerID-1", "fakeContainerName-2"},
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},
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}
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for _, tc := range testCases {
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// Build a new containerMap from the testCases, checking proper
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// addition, retrieval along the way.
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cm := NewContainerMap()
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for i := range tc.containerNames {
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cm.Add(tc.podUID, tc.containerNames[i], tc.containerIDs[i])
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containerID, err := cm.GetContainerID(tc.podUID, tc.containerNames[i])
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if err != nil {
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t.Errorf("error adding and retrieving containerID: %v", err)
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}
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if containerID != tc.containerIDs[i] {
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t.Errorf("mismatched containerIDs %v, %v", containerID, tc.containerIDs[i])
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}
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podUID, containerName, err := cm.GetContainerRef(containerID)
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if err != nil {
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t.Errorf("error retrieving container reference: %v", err)
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}
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if podUID != tc.podUID {
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t.Errorf("mismatched pod UID %v, %v", tc.podUID, podUID)
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}
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if containerName != tc.containerNames[i] {
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t.Errorf("mismatched container Name %v, %v", tc.containerNames[i], containerName)
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}
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}
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// Remove all entries from the containerMap, checking proper removal of
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// each along the way.
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for i := range tc.containerNames {
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cm.RemoveByContainerID(tc.containerIDs[i])
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containerID, err := cm.GetContainerID(tc.podUID, tc.containerNames[i])
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if err == nil {
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t.Errorf("unexpected retrieval of containerID after removal: %v", containerID)
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}
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cm.Add(tc.podUID, tc.containerNames[i], tc.containerIDs[i])
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cm.RemoveByContainerRef(tc.podUID, tc.containerNames[i])
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podUID, containerName, err := cm.GetContainerRef(tc.containerIDs[i])
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if err == nil {
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t.Errorf("unexpected retrieval of container reference after removal: (%v, %v)", podUID, containerName)
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}
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}
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// Verify containerMap now empty.
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if len(cm) != 0 {
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t.Errorf("unexpected entries still in containerMap: %v", cm)
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}
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}
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}
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